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a galvanometer has an internal resistance of 100 and deflects full-scale at a current of 200 ma what size resistor
find the ph and volume ml of 0367 m hno3 neded to reach the equivalence points in titrations ofa 265 l of 00750 m
a 24 m long rod of mass m1 160 kg is supported on a knife edge at its midpoint a ball of clay of mass m2 48 kg is
if a temperature increase from 220 degrees celsius to 330 degrees celsius triples the rate constant for a reaction what
a fortune tellers crystal ball actually just glass is 13 cm in diameter her secret ring is placed 8 cm from the edge of
a beam of unpolarized sunlight strikes the vertical plastic wall of a water tank at an unknown angle some of the light
completely neutralizes stomach acid hcl 10m how much carbon dioxide is made at stp 37 c 767 torr 100 humidity by
a person with a mass of 80kg stands on two snowshoes with areas of 2500cm3 each what is the total pressure on the
an aluminum rod is 210 cm long at 20degc and has a mass of 350 g if 15000 j of energy is added to the rod by heat what
the standard heat of formation delta hcirc rm f is defined as the enthalpy change for the formation of one mole of
water flows through a pipe the radius of the pipe in the narrow part is 2m and the radius of the pipe in the wider part
a reaction that is first order in a has a rate constant of 072min if the initial concentration of a is 160 m what is
an aquarium contains a 5-cm layer of water n1333 floating on top of carbon tetrachloride if the angle of incidence into
a 07120g specimen of iron ore was brought into solution and passed through a jones reductor titration of the feii
a circular window with 05m radius on a submarine can withstand a maximum pressure of 8900 nm2 how deep can the sub
an ideal gas is enclosed in the container with dimensions 5m x 3m x 2m the pressure in the gas is 2 atm1 atm 1013 kpa
given a buret filled with 012 m acetic acid and a second buret filled with 015 m sodium acetate how many milliliters of
a square coil of wire with 15 turns and an area of 040 m2 is placed parallel to a magnetic field of 075 t the coil is
a bicycle wheel of radius 20 cm is mounted at the middle of an axle 43 cm long the tire and rim weigh 24 n the wheel is
a buffer solution contains acetic acid hc2h3o2 at a concentration of 115 m and sodium acetate nac2h3o2 at a
josh starts his sled at the top of a 30 m high hill that has a constant slope of 25deg after reaching the bottom he
the standard enthalpy of atomization of an element is the energyrequired to convert 1 mole of an element in its most
a suppose you have 2600 ml of a 0320 m nac2h3o2 solution you add 2600 ml of a 0320 m hcl solution to it what is the new
completely neutralizes stomach acid hcl 10m how much carbon dioxide is made at stp conditions 37c 767 torr 100 humid by
on an air track a 400 g glider moving to the right at 200 ms collides elastically with a 500 g glider moving in the